Issues with inband DTMF and captured calls

Shalien

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Oct 26, 2018
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#1
Hello everyone,

I have issues with DTMF and captured calls.

We had setup Grandstream GXP2160 IP Phones and use old door intercom which use a DTMF sound to trigger the openning of the door.

Since these door intercom are analogic we also setup a Grandstream HT818 gateway to allow them to work with the new SIP network.

Here a quick schema :

SIP SERVER (elastix) -> Enterprise network -> HT818 -> copper cable -> Door Intercom

This setting work fine in case of direct call from or to the DI . But in case of captured called ( phone ring 1 but another phone capture the call) the user need to input the code multiple time before trigger the openning.

Does anyone have an idea to resolve this issue ?

I may add information if needed.

Thank,
Shalien
 

bolodelaire

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Nov 22, 2018
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#2
Change dial plan of phone
 

Shalien

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Oct 26, 2018
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#3

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